spinning turtle

An act of sitting crossed legged on a rotating office chair. Spin around in continuous circles until you and your colleagues think you're lightheaded.
If a person frequently indulges in the spinning turtle act - he or she can be labelled as "The Spinning Turtle".

Royster, do the spinning turtle!

He just can get enough of doing the spinning turtle.
The Spinning Turtle is at it again.

turtle spin

A type of dance move to spin on the back like a turtle's shell.

I'm doing the turtle spin.